Nephrite and Ruby Physical Properties

Nephrite

Ruby

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.103.97-4.05

1 7.18

1.5 Fracture

Splintery, Granular, Splintery, Granular, Gemstones (2009)

Conchoidal

1.6 Cleavage

Not Available

No true cleavage

1.7 Mohs Hardness

6-6.59

2 10

1.8 Chemical Composition

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Al ₂ O ₃

Nephrite and Ruby Chemical Formula

While comparing Nephrite and Ruby physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Nephrite and Ruby chemical formula.

Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Ruby- Al ₂ O ₃

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Nephrite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nephrite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.